Fishing-tool



J. F. McMlLLIAN AND C. E. REED.

FISHING TOOL.

APPLICATION man JULY 14. 1919.

1,3 2,3 3, Patnted Dec. 21,1920.

Fig 5.

JNVENTOR. J. F M Mi/liaTi. B C.E.Heed.

; A TTORNEY.

which is equipped with cally locking the same in engagement with UI'NITDF STATES PATENT oFFlcs.

TEXAS.

v FISHING-TOOIA',

i :To all whom it may crmcem:

Be it known that we, JOHN F. MoMiLnIAN and CLARENCE E. REED, citizens of the United States, residing at Humble and Houston, respectively, in the county of Hariris and State ofTexas, have invented certain new and useful-Improvements in Fishing-Tools, of which the following is a-spec1- fication.

This invention relates to new and useful i'mgrovements in afishing tool.

" ne object of the invention is to provide a tool of the character described which is Y adapted to be let down into a well bore for the purpose of engaging-with rods or tub-- ing, which may have become stuck in the bore, and through the instrumentality of which, said rods or tubing may be withdrawn. In drilling and pumping 1 wells, particularly oil wells, the tubing or pump rods may become twisted oft or broken down below the surface of the ground, and in such case, in order to withdraw them, it is necessary to let down a fishing tool into the bore formed so as to engage with said rods ortubing whereby the same may be withdrawn from the bore. This tool has been designed for that purpose. o

Another object of the invention is to provide a fishing tool of the character'described us for automatt.

the tubing or rod to be withdrawnfr'om the bore.

ith the above and other objects in View,

' Specification of Letters Patent.

the body A. tool is outwardly threaded for attachment to a string of tubing by means of which the 7 r 1 device is let down into the bore. A further feature of theinvention resides in the provisionof a fishing. tool which is light, and offsimple constructiomand which- -can be manufactured -tend of the rod cheaply and easily' 'ketin-repair,

plan. v ew of, a retaining --refers to a tubular body having-f the flexible members, "B, secured within the Patented Dec. 21, 1 920,

Application flled July 14, 1919. seriarno. 310,546. 4

end b means of the rivets C, C. As shown, thlre are four of these members B, spaced a uniform distance apart around the body A, and their upper ends are free and converge inwardly toward each other, as illustrated in F I igs. 1 and 2. Threaded w1th1n the lower ends of the tubular body A, there I is the thrust ring D, which abuts. against the lower ends of the mem bers B, and the lower end of the thrust ring and body are flared Fig. 1,, so as to readily slip over-the upper end of the rod or tubing to be withdrawn. Fastened to B, are the grip jawsE. These jaws may be secured to the upper ends of the members in any approved manner. As' shown, the upper ends of the said members B are dovetailed into the jaws and said jaws are further secured to them by means of the set screws F, and the inner faces of the jaws are toothed, so as-to more readily en gage with the object to be pulled: An annular wedge G is carried by the tool above the jaws and islsuspcnded in position by means of a flat spring H, whose ends are same near its lower reduced and project through alined holes As the tool descends, it will pass over the upper members yielding outwardly, and as the device is further lowered, the spring H will come into contact with the upper end of said tubing or'rod and its reduced ends will thereby be withdrawn from" the holes L,

, thlis releasing the wedge G. During this operation, said wedge will be prevented from being carried u wardly in the bod A, by the stops K. en the spring I; has been released, the we down around-the flexible the jaws E thus locking said jaws against ge G will drop the rod or tubing to be withdrawn. An upward pull-is then exerted on'the tubing to vwhich the fishing tool is attached, and the rod or tubin enga ed by said tool will thereby'be with rawn roin the bore.

What we claim is? A fishingtool including a tubular body outwardly, as shownin the upper ends of the members members B and or tubing to be pulled, theadapted to fit over a rod, resiliently mounted jaws therein adapted to engage with said In testimony whereof We have signed 0111 rod, an annular Wedge mounted in said body names to' this specification in the presenc above the jaws, locklng means securing said of two subscribin Witnesses.

Wedge in position and adapted to be re- J O N F. MoMILLIAN. leased by said rod to permit the Wedge to CLARENCE E. REED. drop b gravity into position around the Witnesses: jaws W ereby they are locked into engage- E. A. EVANS,

ment with said rod. H. S; ROGERS. 

